Home / 188,129.42-282,237.23-81,531.27

Finding the Fourth Proportional to 188,129.42, 282,237.23 and 81,531.27

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Solution

The fourth proportional to 188,129.42, 282,237.23 and 81,531.27 is: 122,315.58

Step by Step Solution

  1. Step 1: Write the proportion equation
    188,129.42 : 282,237.23 = 81,531.27 : x
  2. Step 2: Convert to fraction form
    188,129.42/282,237.23 = 81,531.27/x
  3. Step 3: Cross multiply
    188,129.42x = 282,237.23 × 81,531.27
  4. Step 4: Simplify right side
    188,129.42x = 23,011,159,395.53
  5. Step 5: Solve for x
    x = 23,011,159,395.53/188,129.42
  6. Step 6: Final answer
    x = 122,315.58

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.